Lt. Gen. William Etter, Commander, Continental U.S. Aerospace Defense Region – 1st Air Force (Air Forces Northern), walks through his office with Lt. Gen. Carlos Antonio Rodriguez Mungia, Commander, Mexican Air Force, on their way to an AFNORTH mission briefing. The Mexican Air Force commander, along with a group of senior U.S. and Mexican military officials, joined AFNORTH senior leaders for a visit and mission familiarization Nov. 24-26. (Photo by Mary McHale)